The purpose of this study was to improve low digestibility in anaerobic digestion facility of the sewage treatment plant. To perform this research, sludge digestion and digestion gas purification facilities in sewage treatment plant was applied. In the result of this study, it was very effective for sludge reduction from the improvement of digestive efficiency. In addition, it was confirmed that high purity CH4 (methane) was produced. This results can be useful as basic data to improve the low digestibility in anaerobic digestion processes.

Abstract
 1. 서 론
 2. 연구방법
  2.1. 연구대상시설
  2.2. 연구방법
 3. 결과 및 고찰
  3.1. 슬러지 가용화 설비 운전 결과
  3.2. 슬러지 감량 효율 분석 결과
  3.3. 소화가스 발생 및 정제효율 분석
 4. 결 론
 참 고 문 헌

• 장성호(부산대학교 바이오환경에너지학과) | Seong-Ho Jang
• 이병인(부산대학교 바이오환경에너지학과) | Pyong-In Yi
• 이용대(부산대학교 바이오환경에너지학과) | Yong-Dea Lee
• 김한수(부산대학교 식품공학과) | Han-Soo Kim Corresponding author
• 조한진(서울디지털대학교) | Han-Jin Cho
• 류재용(한국원자력연구원 공업환경연구부) | Jae-Young Ryu
• 김상우(국립수산과학원 동해수산연구소) | Sang-Woo Kim